Validity of macroscopic models for the sup3He(α,γ)7Be electric-dipole capture reaction

Q. K. K. Liu, H. Kanada, and Y. C. Tang
Phys. Rev. C 33, 1561 – Published 1 May 1986
PDFExport Citation

Abstract

The cross sections for the electric-dipole radiative-capture reaction He3(α)7Be are calculated with an approximation procedure (approximate-resonating-group-method procedure) in which the antisymmetrization of the wave function is simply represented by the adoption of an intercluster renormalized function obtained by operating on the resonating-group relative-motion function with the square root of the norm operator. The result shows that this procedure does yield values for the capture cross-section factor in excellent agreement with the resonating-group-method results. By studying the properties of the approximate-resonating-group-method wave functions, we find that, in this capture reaction, the nuclear potential is sampled at all energies and should be properly considered even at astrophysical low energies around 10 keV. In addition, based again on approximate-resonating-group-method results, we have shown that the macroscopic capture-reaction models of Iwinski et al. using analytical-continuation techniques and of Buck et al. using Gaussian-type effective local potentials are not sufficiently accurate for the computation of cross-section factors because of the fact that the details of the nuclear interaction are not well accounted for.

  • Received 30 December 1985

DOI:https://doi.org/10.1103/PhysRevC.33.1561

©1986 American Physical Society

Authors & Affiliations

Q. K. K. Liu

  • Bereich Physik, Hahn-Meitner-Institut, 1000 Berlin 39, Federal Republic of Germany

H. Kanada

  • Department of Physics, Niigata University, Niigata 950-21, Japan

Y. C. Tang

  • School of Physics, University of Minnesota, Minneapolis, Minnesota 55455

References (Subscription Required)

Click to Expand
Issue

Vol. 33, Iss. 5 — May 1986

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review C

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×